Apparatus for the manufacture of bisulfite liquors.



PTENTED APR. 24, 1906.

No.v 818,8ll,

E. R. BAKKER.

R THE'MANUPACTURB OF BISULFITB LIQUORS APPARATUS F0 APPLICATION FILED 0CT.21, 1905.

2 SHEETS--SHBET v @www www WITNEELEES No. 818,811. PATBNTBD APR. 24, 1906.- B. R. BARKBR. APMRATUS POR THE MANUPACTURB 0F BISULPHB LIQUURS.

APPLICATION FILED 00T. 2l, 1905. l

2 SHEETS-SHEET 2.

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"UNTED STATES @Affiti @il @liliin ELLIGTT R. BARKER, GF BERLIN, NEWT iiAiilPSl-illill.

APPARATUS FOR THE MANUFACTURE OF EBSULFTE LEQUMES.,

Specification of Letters Estant.

atented E.

Application filed October 21,1905- Sorial NOZSSSV.

To if/ZZ when/L, it may con/cern:

Be it known that l, ELLIOTT R. BARKER, a citizen of the United States, residing at Berlin, in the county of Coos and State of New Hampshire, have invented new and useful Improvements in Apparatus for the Manufacture of Bisuliite Liquors, of which the following isa speciiication.

This invention relates to an a paratusfor they manufacture of bisulfite lliquors, the object of the invention being to provide a cheap, simple, and efficient device for the purpose set forth in which a uniform distriution of gas throughout the liquors emploi ed is secured.

he invention consists in the combination and arrangement of parte set forth in the following specification, and particularly pointed out in the claims thereof.

Referring to the drawings, Fi ure 1 is a vertical longitudinal section, part y in elevation, of my improved a paratus. Fig. 2 is a plan section taken on luie 2 2 of Fig. 1 look- 1n downwardly in said fi re. l

ike numerals refer toglilke parts throughout the several views of the drawings.

In the drawings..v 5 is a vertical cylindrical tank, in which is the cylindrical wall, 7 the top, and 8 the bottom, thereof. The interior of said tank is divided into four compartments 9, 10, 11, and 12 by a lurality of partitions 13, 14, 15, and 16. ach of said partitions is provided with a large numbei` of perforations 17, prefere-hiv of conical formation, with the smaller cn s opening through the upper surface of each of said partitions. he lotvernipst partition 15 is located at a distance from the bottom 8 of said tank substantially less than the height of any of the com artments 9, 10, 1i, andl and forms a gas-l istributin'g chamber 28, which is connected. by a pipe 1.8 to gas; coolers (not shown) constituting receptacles for the gas which is usedin the manufacture of the bisul'tite liquors, as hereinafter set forth. The pipe 18 projects out of the bottom 8 of the tank, extending radially outward therefrom, and then projects upwardly to a Isuliicient distance to prevent any liquid which ma be in the tank from Aflowing through sai pipe into the gas-receptacles when the ap aratus is shut down.

@he compartment 9 is connected to the compartment 10 by an overflowipe 19. The compartment 10 is connecte to the compartment 11 by an overflow pipe 2S). The compartment l1 is connected to the compartment 12 by an overflow-*ripe 2i, and an overflow-pipe 22 leads out of the compartnient 12 to an acid-Well. (Not shown in the drawings.) Said pipe 22 is provided with a shut-oilx valve Y en exhaust-pipe 24 leads out of the upper compartment i) to avacuumump. The liquid {in this instance milk of une) is supplied to the tank through the supply-pipe 25, said supply-pipe being provided with a shut-ofi' valve 26.

A rotarv shaft 2T extends downwardly through the different compartments from the top to the bottom of the tank and is journaled to rotate in a bearing 29,' fast to the top 7 of the tank, and in a stepped bearing 30, fast to the bottom Soi the tank. `blades 36 are fastened to said shaft 27 at dif of agitator-blades 36 being supplied for each `of the compartment-s 9, 10, 1l, and 12. Ro-

tary motion is im arted to said shaft 27 by a bevel-gear 31 and) bevel-pinion 32 meshing thereinto, said bevel-pinion being fastened to a shaft 33, journaled to rotate in bearings 34 34 and rotated by means of a pulley 35.

The operation of my improved apparatus hereinbefore -specifically described 1s as fol lows: Assuming the apparatus to be empty and that it is to be started for the-first time, the vacuum-pumis started and gas is su plied to the interior of the tank through tiie pipe 18, the same flowing into the gas-distri 4bution chamber' and passing upwardly through the perforations 17 in the partitions 16, 15, 14, and 13 and into the compartments 12, 11, 10, and 9 consecutively. It being understood that the gas is now passing through the different compartments Q, 10, 11, land 12 vthrouvh the perforations 17, the valve 23 is first clvosed and the valve 26 opened, allowing liquor-viz. milk of lime-to how throueh the pipe 25 into the compartment 9 unti said `milk of lime arrives at thc height of thc line a in said compartment. he supplgs still continuing to iiow in through the pipe 25, said liquor will pass through the overflow ipe 1Q into the compartment 10 until it ii ls said compartment to thc height of the line b therein. Then overflowing, said liquor will flow through the overflow-pipe 2O into the com artment 11 until it reaches the height ot' the ine c. Overiiowing again, said .iunior will flow into the compartment 12 utii it 'ICO i` inbefore set forth, it will be un .partment l2.

reaches the height of the line d. While the apparatus is being filled with the liiuor, as hereerstood that the shaft 27 and the agitators 36 are being rotated by means of the mechanism hereinbefore described. As soon as the levels a, b, c, and d in the different compartments have been reached by the lime-water, as hereinbefore described, the lime-water is Vshut ofi until the acid becomes clear in the lowermost com- This shows that'all the milk of lime has been converted to bisulfite of lime and that there is an excess offre'e sulfurous "acid, As soon as this occurs the valve 23 is opened and also the valve 26 to allow lime- Water to iiow into the upper compartment to compensate for that which flows out through the pipe 22 to the acid-well, and these valves' are so re ulated that the outflowing finished liquor W ch flows out'through the pipe 22 shall be of the required strength'.

During the-process hereinbefore described it will be understood that gas is supplied through the pipe 18, Vthe same flowing into the gas-distribution chamber 2S and passing upwardly through the perforations 17in the partition 16 through the liquor contained in the compartment 12, then upwardly through theperforations in the different partitions 15, 14, and 13 consecutively and through thecompartments 1 1, 10, and 9 consecutively. After arriving in the upper compartment it is drawn oil' by means of the exhaust-pipe 24 and an exhaust-pump attached thereto. rlhe liquor travels continuously from one compartment to the next lower, and the volumeof liquor thus overflowing is always kept-equal t'o the volume of lime-water entering through the pipe 25. i

As soon as the vacuum-pump is shut down the valve 23 is closed and the liquor from the different compartments flows through the perforations 17 in the different partitions u ntil it. comes to rest/at a level substantially equal in height to the simi of the dill'erent depths of liquor contained in the four compartments. At this time in thc operation of thc machine the liquor will rise in the gasinl'et pipe 18 to the same level that it assumes in the interior ol' tbc tank 5, and to prevent the liquor from flowing back to the gas-coolers when the apparatus is shut down said pipe 15a is extended vertically from thc bottom of the tank to a distance greater than the height of liquor ref erred to.

In starting the apparatus' after it has been shut down, as hereinbefore described, the vacuum-pump is started, andwhen the liquor has become clear in the lower compartment by reason ofthe gas passing through said liq uor from the sup ly-pipe 18 and upwardly therefrom throug the tank the valve 23 is opened and lime-water'adniitted through the supply-pi e 25, as ,hereinbefcr'c described, keeping t e level of the liquor in the different eiaeii compartments at the same heights'as hereinbefore set forth-viz. at the height of the lines a, b, c, and d, respectively.

The advantage of my improvedapparatus for the manufacture of bisulfite liquors is as follows: First, the perforated partitions su'pply means for obtainin a very uniform distiibution of gas tliroug out the liquors contained in the different compartments. These small bubbles,v or globules, thereby obtaining better a'bsor tion by the lime Water contained in sai compartments. The small size very strong solutions of isulfite liquors. The combined area ofthe perforations is sufficient to allow free passage of. as with a minimum loss due to friction. heprovision of four compartments tends to insure lthe eiiiciency of the ap aratus, for practically all the absorption wil take place in the three lower compartments, whi e theupper comsulfur-dioxid as escaping.

Another a vantage secured by the construction hereinbefore described is that the distributed over the perforated partitions supplies a very efficient method of `agitation to the liquors` contained in said compartments. 'l`hisagitationstarts at the very botto'm of the body of'liquor in each compartment, thus giving such a perfect agitation that there is.y ractically no quiet area in which monosu tite of lime or dirt or other 4troublesome compounds can settle or accul mulate. y The matter of the perforatedparl titions hereinbeforereferred to, by means of l, which a perfect a itation anddistribution of gas in small bubb es throughout the different compartments and throughout the liquors contained therein are secured, is a very iniortant-one in an apparatus of the class herei inbefore described, ,and` it is my intention in l many cases to operate the ap aratus without the agitators 36 Sti-simply by the distribution of gas in small bubbles, as hereinbefore i, described, throughout .the body of the liquor 5 contained-in the different compartments and forcing said gas through the said liquor by perforations being small break the gas up intoof the bubbles also makes it ossible to obtain i large number of small perforations uniformly.

-partment will serve as a guard against any v IOC | the use of the suction-pump connected to the.

l upper compartment 9'by thev pipe 24.

l Having thus described my invention, what l I claim, and desire by Letters Patent to secure,'is-

1. apparatus of thecharacter described comprising a tank, a plurality of perforated partitions extending across the interiorA of i said tank and dividing the same into a plurality of compartments, the lowermost of said partitions located at a distance from the bottom of said tank substantially less than the vheight of any of said compartments, and forming a gas-distributing chamber, means l connecting said chamber to gas-receptacles,

overflow-pipes connecting each of said compartments to the compartment therebelow, the overfiow-pipe of the lowermost compartment leading to a receptacle for acid, an exhaust-pipe, and a supply-pipe connected to rality ol' compartments, the lowermost of said partitions located at a distance from the bottom of said tank substantially less than` the height of any of said com artments, and forming a gasdistributing c amber7 means connecting said chamber to gas-receptacles, overflow-pi pes connecting each of said compartments to the compartment therebelow, the overflow-pipe of the lowermost compartment leading to a receptacle for acid, an exhaust-pipe, a supply-pipe connectedto the uppermost com artment, a shaft extending longitudinally o said tank through said cornpartments, agitator-blades fast to said shaft 1n each of said compartments, and mechan`- ism to impart a rotary motion to said shaft.

3. An apparatus of the character described comprising a tank, a plurality of perforated partitions extendin across the interior of said tank and dividlng the same into a plurality of compartment-s, the lowermost of said partitions located at a distance from the bottom of said tank substantially less than the height of any of said compartments and forming a gas-dlstributing chamber, a pi e connecting said chamber to a gas-receptac e, said pipe extending upward from the bottom of said tank to a distance suficient to prevent the liquor therein from o'wing into said asreceptacle, overflow-pi es connecting eac of said compartments to t e compartment therebelow, the overflow-pipe of the lowermost compartment leading toa receptacle for acid, an exhaust-pipe, and a supply-pipe connected to the uppermost compartment, and means to agitate t e contents of said compartments.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ELLIOTT R. BARKER. Witnesses:

E. S. HANNAFORD, W. J. MOORE. 

